JPH0520832Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vibration isolation/seismic isolation device, and particularly to a vibration isolation/seismic isolation device on which equipment, etc. that dislike vibration is mounted.

[Prior art]

The vibration isolation/seismic isolation device is composed of a plurality of vibration absorption units made of laminated rubber and a heavy seismic isolation table mounted on these vibration absorption units. Equipment that dislikes vibration is placed on the seismic isolation table.
These devices are protected from vibration.

FIG. 3 is a side view of a conventional vibration isolation/seismic isolation device. As shown in FIG. 3, a vibration absorbing unit 7 formed of laminated rubber is placed at a predetermined position on the foundation floor 70.
2,72... are placed. Vibration absorption unit 7
2, 72... A seismic isolation table 74 made of heavy material is attached to the upper surface, and a vibration-resistant device 76 that dislikes vibration is mounted on the seismic isolation table 74.

In addition, in some cases, the foundation floor 70 and the seismic isolation stand 74
A buffer damper 78 is disposed between the center lower surface of the seismic isolation table 74 and vibrations generated in the seismic isolation table 74 are quickly attenuated by the damper 78.

In such a configuration, when the anti-vibration equipment 76 is placed on the seismic isolation table 74, vibrations generated on the seismic isolation table 74 or the foundation floor 70 are absorbed by the vibration absorption units 72, 72.
Because the vibration is absorbed by ..., no vibration occurs in the equipment 76.

[Problem that the invention attempts to solve]

However, such vibration isolation/seismic isolation devices have the following problems.

(1) Since the seismic isolation platform 74 on which equipment and the like are mounted is formed into an integral structure by hardening concrete, there is a problem in that it takes time and effort to construct on-site.

(2) After construction, the seismic isolation platform 74, which has an integral structure, has a problem in that the layout and specifications (for example, changes in size, etc.) cannot be easily changed.

(3) If equipment, etc. is placed eccentrically on the seismic isolation table 74,
There is a problem in that the seismic isolation table 74 tilts and impairs the vibration isolation and isolation function.

The present invention was developed in view of these circumstances, and the purpose is to propose a vibration isolation/seismic isolation device that allows for the easy construction of a seismic isolation table and the easy layout of the seismic isolation table. It is said that

[Means for solving the problem]

In order to achieve the above object, the present invention consists of a heavy seismic isolation table supported on a plurality of vibration absorption units, and is an anti-vibration system that isolates the vibrations of equipment placed on the seismic isolation table. The vibration/seismic isolation device is characterized in that the base isolation table is composed of a frame formed in a lattice shape and divided blocks of heavy objects accommodated in each lattice of the frame.

[Effect]

According to the vibration isolation/seismic isolation device according to the present invention, a seismic isolation table made of a heavy object can be formed by attaching divided blocks to a grid of a frame. Furthermore, the divided blocks can be taken out individually from the grid for easy transportation. Therefore, it is possible to easily construct a seismic isolation table by attaching the divided blocks to the frame on-site, and the layout can be made easily because it can be disassembled and reassembled.

〔Example〕

Preferred embodiments of the vibration isolation/seismic isolation device according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a side view of the vibration isolation/seismic isolation device according to the present invention. As shown in FIG. 1, vibration absorbing units 10, 10, .
As shown in FIG. 2, the vibration absorbing unit 10 has a laminated structure in which rubber materials and metal plates are alternately laminated, and is formed into a cylindrical shape. Further, as shown in FIG. 2, disk-shaped mounting plates 16 are bonded to the upper and lower ends of the vibration absorbing unit 10, and the mounting plates 16 at the lower end of the vibration absorbing unit 10 are attached to the foundation floor 14 via bolts. Fixed. On the other hand, a frame 22 is attached to the mounting plate 16 at the upper end of the vibration absorbing unit 10 via a square fixing plate 18.

The frame 20 is formed in the form of a lattice, and blocks 22 are fitted into the lattice. The block 22 is made of rectangular concrete material weighing several tens of kilograms, and has a weight that can be carried by one worker. The block 22 fitted into the lattice of the frame 20 is fixed to the frame 20 by means of fixing fittings 24 and bolts 26. Incidentally, a plurality of the frames 20 housing the blocks 22, 22 are stacked and used depending on the function of the vibration isolation/seismic isolation device.

As shown in FIG. 1, an equipment mounting board 28 is attached to the upper surface of the stacked frames 22, and a precision equipment 30 that is sensitive to vibration is mounted on the equipment mounting board 28. Therefore, a seismic isolation table 32 is constituted by a plurality of laminated frames 20, 20, . . . containing blocks 22 and the equipment mounting plate 28.

According to the vibration isolation/seismic isolation device according to the present invention configured as described above, the vibrations generated in the seismic isolation table 32 are absorbed and absorbed by the plurality of vibration absorption units 10, 10... and the buffer damper 12. Attenuated. Therefore, the precision equipment 30 on the equipment mounting board 28 is protected from minute vibrations generated by the equipment 30 or external environmental vibrations generated from the foundation floor 14.

In this case, the heavy seismic isolation table 32 can be easily assembled into the vibration absorbing unit 1 by attaching and removing the divided blocks 22, 22, . . . to the lattice of the frame 20.
0, 10... can be assembled or disassembled. Therefore, unlike conventional construction methods, concrete is not poured into a frame or the like to form an integral structure, which reduces construction time and labor, and makes it easier to install vibration isolation and seismic isolation devices in existing building equipment. It can be easily constructed even on floors. Furthermore, after the vibration isolation/seismic isolation table is constructed, the number of stacked frames 20 can be changed, so the layout or specifications can be easily changed (changed in weight, etc.) according to convenience. Furthermore, equipment 3
Even if 0 is eccentrically mounted, block 2 of frame 20
2 can be partially removed from the eccentric side grid to adjust the balance, so buckling of the vibration absorbing unit 10 etc. is prevented and the vibration isolation and seismic isolation functions are not impaired.

In the embodiment described above, the vibration absorption unit 10 made of laminated rubber was used to absorb vibrations, but the present invention is not limited to this, and a vibration absorption unit using an air spring or the like may be used.

Furthermore, in this embodiment, the concrete block 20
However, the present invention is not limited to this, and metal blocks, hard plastic blocks, etc. may also be used.

[Effect of idea]

As explained above, according to the vibration isolation/seismic isolation device according to the present invention, the seismic isolation table for heavy objects is formed by the divided blocks and the lattice-like frame. The seismic stand can be easily constructed and the layout of the seismic isolation stand can be easily made.

[Brief explanation of the drawing]

Figure 1 is a side view of the vibration isolation/seismic isolation device according to the present invention, Figure 2 is an exploded perspective view of the vibration isolation/seismic isolation device, and Figure 3 is an exploded perspective view of the vibration isolation/seismic isolation device.
The figure is a side view of a conventional vibration isolation/seismic isolation device. 10... Vibration absorption unit, 20... Frame, 22
...Block, 28...Equipment mounting board, 32...Seismic isolation stand.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A vibration isolation system consisting of a heavy base isolation table supported on a plurality of vibration absorption units, which isolates the vibrations of equipment placed on the base isolation table. In the vibration/seismic isolation device, the seismic isolation table is composed of a frame formed in a lattice shape, and divided blocks of heavy objects accommodated in each lattice of the frame. Vibration/seismic isolation device. (2) The vibration isolation/seismic isolation device according to claim 1, wherein the base isolation table is formed by stacking a plurality of the frames.